JP3348889B2 - Equipment for banding of packages by bands - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for banding a package, such as a bundle of newspapers, with a band.

[0002]

2. Description of the Related Art A device of this kind is disclosed in DE 33 03 95
6 A1, known in FIG. In the case of the cruciform banding machine, only the band guideways for vertical banding are relevant to the invention. The band guideway is formed as a vertically upright frame in the transport direction, i.e., the front and rear frame portions are raised high to carry the package to the banding position and transport it forward. I have.

Even if such a complicated structure having a movable portion and requiring a divided band guide frame is ignored, the performance of the machine is not perfect because the time required for the banding process is long. I can not say. The package takes a banding posture, the band guide frame is closed, and the driving of the band is finally started.

[0004] Another device of the type mentioned at the beginning is the DE
41 00 276 A1. In the case of this binding machine, the band guide path for vertical banding, which is a problem, is fixed and located on one surface of the banding plane, and the other surface is empty. As a result, the band guideway has a spatial extent and does not coincide with the banding plane. The band loops driven in during the tightening process are pulled out sideways or obliquely from the non-planar band guideways and finally slide on the guide plate in order to be fastened to the package in the banding plane.

[0005]

However, in the known device for the band guide path, as a result of a longer band loop for driving, the band to be pulled in tightening becomes longer. Ultimately, it negatively affects the machine cycle time and thereby the efficiency of the machine. The slight inclination which is essential for the guide plate limits the band pulling speed during tightening. Also, only band performance with special strength can be used. Finally, difficulties arise with regard to the available transport means.

The object of the present invention is simpler,
The object of the invention is to provide a strapping device of the kind mentioned at the outset, which can work faster and can use all the usual kinds of strapping bands.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, an apparatus according to the present invention comprises a horizontal conveyor forming a transport plane for transporting a package in a straight line to a banding position and further out of the position. A band guide for forming a loop having an open or releasable wall area so that a band loop formed inside the band guide can be released when the package is mounted on the package; A banding head for driving the band and tightening and connecting and cutting the band;
An apparatus for banding in which a banding plane is defined , wherein the band guide path has two parts, the two parts being located at opposite positions across the banding plane, and the conveying movement of the package. and that they are spaced from each strapping plane to the extent that does not interfere with, and that said two parts at opposite positions across the package in the strapping position, are connected to each other by other parts, packaging Across
The part that is located is the part that crosses the banding plane diagonally.
Connection .

Accordingly, the band guide path forms a double bend on the surface of the package on which the binding head is located, and the binding head is a turning area in that case. The opposite portion is substantially straight and, together with the straight portion parallel to the banding plane, forms a plane inclined with respect to the banding plane. In order for the band to be able to leave the band guide when tightened, the band guide must be open in the direction of the package or provided with a closing element which can be opened and closed.

Another device according to the invention is characterized in that the band guideways extend in a plane substantially obliquely across the banding plane on a transverse line extending perpendicular to the conveying direction, and the binding head is The binding head is capable of swinging about an axis extending along the transverse line, and the binding head forms an angular positional relationship in which the longitudinal center plane of the binding head and the band guideway plane overlap with each other when the band is driven. The binding head swings into a banding plane when the band is tightened.

Therefore, the band guideway is a simple and flat rectangular frame, and two branch points (trend) are formed in a part of the rectangular frame.
nstellen), i.e. before and after the binding head, in which case the branch point may be provided at a distance from the binding head as required. In that case, the binding head is elongated in both directions of the band guideway. The aforementioned transverse line or swing axis need not pass through the center of the binding head, but may extend eccentrically or at a distance from the binding head. The band loop is carried into the banding plane exclusively by the swinging movement of the binding head according to the stiffness of the band.

In the above-described banding apparatus, as in all the apparatuses of the same type, the banding plane normally has a positional relationship of being vertically upright with respect to the transport plane. On the other hand, a development of the invention proposes to change the angle, for example by 90 °, about an axis oriented in the transport direction through the entire device. In that case, the banding plane extends parallel to the transport plane. That is, packaging objects, such as parcels, parcels and upright bottles, conveyed on a horizontal belt conveyor can be horizontally banded.

Of course, if a cross-banding of the package using two band loops is desired, a known horizontal strapping machine can be connected to the device.
Similarly, the device itself can be supplemented with a laterally extending band guideway and another binding head to provide, for example, a cross banding machine. In this case, as is well known, measures must be taken to prevent the band from passing laterally from the outer band guideway via the inner band guideway.

[0013]

The fixed band guideway of the present invention has a relatively simple three-dimensional shape and crosses the banding plane. Since the band loop is short, it can be easily inserted into the plane defined by the binding head by tilting or rocking movement when tightened. This can be done very quickly and generally suffices with simple sliding assistance. When tightened, the band flies straight into the banding plane without rubbing the edges of the package.

An embodiment of the present invention will be described below with reference to a schematic diagram.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the apparatus of FIGS. 1 and 2, a horizontal transport plane 1 is schematically shown by two conveyors 2, 3, and an arrow 4 indicates the transport direction. The assumed banding plane 5 extends between the conveyors 2 and 3 in the transport direction. The banding plane 5 stands vertically on the transport plane 1.

A banding head 6 of a known type is located in a central area below the transport plane 1, and the banding head 6 collectively drives the bands pulled out from the supply roll into a band guide path indicated by 7, thereby forming a band loop. It is configured so that it can be pulled back and tightened so that the end of the band is welded to the band at the beginning of the loop to cut the band loop.
The central longitudinal axis and the central longitudinal plane of the binding head 6 represent a straight trajectory through which the band is fed through the binding head 6. The longitudinal center plane is located in the banding plane 5 and in the transport direction 4. A bundle of newspapers is shown as the package 8 at the banding position (indicated by the dashed line in FIG. 1).

The band guideway 7 has a horizontal straight upper part 9.
The upper part 9 of which passes obliquely through the strapping plane 5 above the package 8. Connected to the left of the part 9 is a vertical part 10, which is followed by a substantially laterally extending horizontal part 11 located below the transport plane 1. The horizontal part 11 then enters the binding head 6 via the bend and into the strapping plane 5. Vertical part 1
0 is correspondingly twisted. In the curved portion, the band guide path is slanted in the lateral direction with respect to the band direction. Furthermore, on the opposite side of the binding head 6, the guide path also forms a curved section on the opposite side below the transport plane, and then continues from the horizontal portion 12 to the vertical portion 13, following the vertical portion 13. Then again the upper horizontal part 9 follows. Therefore, the band guide path 7 forms a closed loop, and the band at the time of driving in the loop is reliably guided, so that the band does not suddenly come out of the loop.

If necessary, a movable closing element, such as a lid, formed so that the band can escape towards the banding plane 5 and be mounted around the package 8 in the banding plane 5 during the subsequent tightening. May be provided in the band guide path 7. Due to the band guidance in the binding head 6, the band has the tendency to come out during tightening and be mounted around the package 8 in the banding plane 5. If the band guideway extends below the transport plane 1, the transport table has a slit opening. There is also a slit opening between the conveyors 2, 3 shown as belt conveyors in this embodiment. The fact that a so-called pusher can be used instead of the belt conveying means in the apparatus area should be regarded as a unique advantage of the present invention. In FIG. 1, the pusher could be arranged in the lower right area, ie in the transport direction before the vertical part 13, and another pusher could be arranged in the upper left area, ie after the vertical part 10.

FIG. 3 is a top view of the embodiment of FIG. 3 and has no curved portion. It is emphasized that the band guideway shown at 14 in this figure is rather a flat frame. However, in this case, the binding head 15 can swing about a vertical axis 16 which forms the intersection of the banding plane 5 and the frame plane. The swing drive unit is provided so that the binding head 15 is positioned within the plane of the frame when the band is driven, that is, obliquely with respect to the transport direction. As in the case of the embodiment of FIG. 1, it is also possible to feed the package to the banding position prior to banding. However, when the tightening process begins, the binding head swings into position 15 ', i.e., into the banding plane 5, whereupon the band is pulled together. Accordingly, band movement similar to that of the first embodiment is performed. In any case, the band is mounted on the package 8 not shown in the figure in the banding plane 5.

FIG. 4 shows a modification of the embodiment of FIG. 3 in which there is further provided a band guideway 18 which is laterally located and has its own fixed binding head 18. The swingable binding head 15 is spaced apart from the swing shaft 16, unlike FIG. 3, so that the swinging movement of the binding head 15 is not hindered by the binding head 18. As is well known in cruciform banding machines, a conveyor is separated into a front and a rear portion for mounting a horizontal band. In order to allow the outer band to pass through the gap between the inner band guideways, a measure is also taken at the cross intersection of both band guideways.

FIG. 5 shows a more simplified version of the apparatus of FIG.
However, it is shown again in a three-dimensional view. However, a left curved portion is shown in place of the right curved portion, and is reversed. Band guideways with individual parts are indicated by the same reference symbols as bold black lines. Of the illustrated squares, the plane such as the transport plane 1 or the banding plane 5 is not intended to limit the width of the plane, but is intended to exclusively imagine the three-dimensional positional relationship of the corresponding plane. The cube shown by the dashed line has no structural significance because the edges of the cube extend in the transport direction 4 and the direction perpendicular thereto. The cube does not actually exist, but merely to clarify the three-dimensional process of the band guideway. Strictly speaking, both the binding head 6 and the parts 11, 12 of the band guideway are located not in the transport plane 1 but rather below the transport plane 1.

The package 8 is in this case a square parcel, but is guided into the apparatus from the left until it reaches approximately the center above the binding head 6. When the band 19 is attached,
The package 8 leaves the device as shown. The band 19 extends in an infinite vertical banding plane 5.

FIGS. 5 and 6 illustrate how a horizontal strapping device can be achieved by turning the device 90 °. In this case, the banding plane 5 is located parallel to the transport plane 1. The previously vertically extending portions 10, 13 of the band guideway now extend horizontally,
The part 10 extends somewhat below the transport plane 1. The binding head 6 and the parts 11, 12 are on the left in the vertical plane of the package. The part 9 of the other surface is inclined with respect to the transport plane 1. As can be seen, there are a variety of effective ways to provide unobstructed transport elements for the package 8.

[0024]

In the device according to the invention described above, in each case the belt conveyor simply has to be stopped during the banding process or decelerated to a very slow speed. ADVANTAGE OF THE INVENTION According to this invention, in order to carry a packaging object to a banding position, it is not necessary to rotate the packaging object at all.

[Brief description of the drawings]

FIG. 1 is a top view of a vertical banding device having a fixed binding head.

FIG. 2 is a front view of the apparatus of FIG. 1 as viewed from a transport direction.

FIG. 3 is a top view of another vertical banding device having a swingable binding head.

FIG. 4 is a top view of the cross banding device.

FIG. 5 is a more schematic three-dimensional view of a vertical banding device having a vertical banding plane.

FIG. 6 is a schematic three-dimensional view of a vertical banding device having a horizontal banding plane.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Convey plane, 2, 3 ... Conveyor, 4 ... Convey direction, 5 ... Banding plane, 6 ... Binding head, 7 ... Band guideway, 8 packages, 9 ... upper part, 10 ... vertical part, 11, 12 ... lower part, 1
3 ... vertical part, 14 ... band guideway, 15 ...
A binding head at the time of driving, 15 ': a binding head at the time of tightening, 16: a swing shaft, 17: a band guide path.
18 ... unity head, 19 ... band

Continuation of the front page (72) Inventor Berthold Buhler, Germany 7902 Braubreilen Ringstrasse 25 (56) References JP-A-2-127215 (JP, A) European Patent Application Publication 105557 (EP, A2) (58) Field surveyed (Int. Cl. ⁷ , DB name) B65B 13/00-13/34 B65B 27/00-27/12

Claims (7)

(57) [Claims] 1. A horizontal conveyor forming a transport plane for transporting a package in a straight line to a banding position and further out of the position, and a band loop formed in a band guide path are mounted on the package. A band guide for forming a loop with an open or releasable wall area, sometimes for release, and a tie head for driving the band into the band guide and for tightening and connecting and cutting the band. With a band attached to the package
A device for banding where a plane is defined , wherein the band guideway (7) has two parts (10, 13), said two parts (10, 13) being the banding plane (5). and that are spaced respectively from the strapping plane so as not to interfere with the conveying movement of the relative in position and package (8) sandwiched between, the two portions (10, 13) is in the strapping position packaging At positions opposing each other with the object (8) interposed therebetween , the other parts (11, 12, 9) are connected to each other, and are positioned opposing each other with the package (8) interposed therebetween.
Parts (10, 13) lie diagonally across the banding plane (5)
Device characterized by being connected by a cutting part (9) . 2. The device according to claim 1, further comprising a feeding device or a band feeding device for feeding a band loop to be tightened during tightening from the band guide path (7, 14) into the banding plane (5). 3. The binding head (6) has a longitudinal center plane which is simultaneously a banding plane (5) and extends in the transport direction (4), and the band guide path (7) is a binding head. (6) relative to the banding plane via the curved part
The apparatus of claim 1 in which that you have followed the portion (10, 13) located in the Japanese <br/> symptoms. 4. The band guide path (14) extends substantially in one plane, said plane extending on a transverse line extending perpendicular to the conveying direction (4) and a banding plane (5). ), And a binding head (15) is pivotably supported about an axis (16) extending on said transverse line, said binding head (15) being of the band (19). The driving is performed so that the longitudinal center plane and the band guide path plane overlap each other at the time of driving, and the binding head (15) swings into the banding plane (5) when the band is tightened. entering Te apparatus according to claim 1, wherein. 5. The banding plane (5) is a transport plane (1).
2. The device according to claim 1, wherein the device stands upright with respect to. 6. A banding plane (5) is a transport plane (1).
2. The device according to claim 1, wherein the device extends parallel to. 7. A band guideway apparatus for strapping is extending in a direction transverse to the conveying direction (17), and further using a strapping device having a different strapping head (18), the cross banding 2. The device according to claim 1, wherein the device is configured as a device.